Nitrogenous heterocyclic compounds degradation in the microbial fuel cells

Hu, Wenjuan; Niu, Cheng-Gang; Wang, Ying; Zeng, Guangming; Wu, Zhen

doi:10.1016/j.psep.2010.10.006

Cited by 46 publications

(10 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Notably, there was a no correlation between power density and degradation rates ( r = 0.07, p < 0.05); a similar observation was reported by Hu et al. . A number of factors, e.g., oxygen intrusion into the anode, substrate conversion to biomass etc.…”

Section: Resultssupporting

confidence: 80%

Enhanced biodegradation of phenanthrene using different inoculum types in a microbial fuel cell

Adelaja

Keshavarz

Kyazze

2014

Engineering in Life Sciences

View full text Add to dashboard Cite

Environmental pollution by petroleum hydrocarbons from contaminated groundwater and soils is a serious threat to human health. Microbial fuel cells (MFCs) could be employed in the treatment of these recalcitrant pollutants with concomitant bioelectricity generation. In this study, the use of MFCs in biodegradation of phenanthrene, a model hydrocarbon, was investigated with respect to its biodegradation rate, biodegradation efficiency, and power production using a range of inocula (Shewanella oneidensis MR1 14063, Pseudomonas aeruginosa NCTC 10662, mixed cultures, and combinations thereof). All the inocula showed high potentials for phenanthrene degradation with a minimum degradation efficiency of 97%. The best overall performing inoculum was anaerobically digested sludge supplemented with P. aeruginosa NCTC 10662, having a degradation rate, maximum power density and chemical oxygen demand removal efficiency of 27.30 μM/d, 1.25 mW/m2 and 65.6%, respectively. Adsorption of phenanthrene on the carbon anode was also investigated; it conformed to a Type II adsorption isotherm and could be modelled using a modified Brunauer, Emmett and Teller model with a maximum monolayer capacity of 0.088 mg/cm2. This work highlights the possibility of using MFCs to achieve high degradation rates of phenanthrene through co‐metabolism and could potentially be used as a replacement of permeable reactive barriers for remediation of hydrocarbon‐contaminated groundwater.

show abstract

Section: Resultssupporting

confidence: 80%

Enhanced biodegradation of phenanthrene using different inoculum types in a microbial fuel cell

Adelaja

Keshavarz

Kyazze

2014

Engineering in Life Sciences

View full text Add to dashboard Cite

show abstract

“…Emerging contaminants (ECs) have drawn attention because of their potent environmental retention, bioaccumulation, and potential risk of inducing detrimental ecological and health consequences on both wildlife and humans . The discharge of unused and expired drugs, industrial waste, hospital waste, and landfill leachate in daily life results in the residue of ECs in many aquatic environments at amounts ranging from ng/L to μg/L. , The ECs thus need to be efficiently removed in water treatment.…”

Section: Introductionmentioning

confidence: 99%

A Novel Source of Radicals from UV/Dichloroisocyanurate for Surpassing Abatement of Emerging Contaminants Versus Conventional UV/Chlor(am)ine Processes

Wang

Zheng

et al. 2023

Environ. Sci. Technol.

View full text Add to dashboard Cite

Ultraviolet (UV)/chlor(am)ine processes are emerging advanced oxidation processes (AOPs) for water decontamination and raising continuous attention. However, limitations appear in the UV/ hypochlorite and UV/monochloramine for removing specific contaminants ascribed to the differences in the sorts and yields of free radicals. Here, this study reports UV/dichloroisocyanurate (NaDCC) as a novel source of radicals. NaDCC was demonstrated to be a wellbalanced compound between hypochlorite and monochloramine, and it had significant UV absorption and a medium intrinsic quantum yield. The UV/NaDCC produced more substantial hydroxyl radicals (•OH) and reactive chlorine species (RCSs, including Cl•, ClO•, and Cl 2 • − ) than conventional UV/chlor(am)ine, thereby generating a higher oxidation efficiency. The reaction mechanisms, environmental applicability, and energy requirements of the UV/NaDCC process for emerging contaminants (ECs) abatement were further investigated. The results showed that •OH and •NH 2 attacked ECs mostly through hydrogen atom transfer (HAT) and radical adduct formation, whereas Cl• destroyed ECs mainly through HAT and single electron transfer, with ClO• playing a certain role through HAT. Kinetic model analyses revealed that the UV/NaDCC outperformed the conventional UV/chlor(am)ine in a variety of water matrices with superior degradation efficiency, significantly saving up to 96% electrical energy per order. Overall, this study first demonstrates application prospects of a novel AOP using UV/ NaDCC, which can compensate for the deficiency of the conventional UV/chlor(am)ine AOPs.

show abstract

“…Moreover, the pyridine compounds present in the IOR are difficult to degrade by the microorganisms under aerobic and anaerobic environments due to their toxicity to the microbial communities. 23 Thus, this makes the IOR unamenable to conventional biological treatment. Therefore, in the present study, CWAO of the IOR was performed using a platinum catalyst (Pt/Al 2 O 3 ) as a pretreatment step to degrade the toxic contaminants into biodegradable intermediates.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, the high alkalinity of IOR limits the applicability of conventional biological treatment as the high pH can be detrimental to the growth of microorganisms. Moreover, the pyridine compounds present in the IOR are difficult to degrade by the microorganisms under aerobic and anaerobic environments due to their toxicity to the microbial communities . Thus, this makes the IOR unamenable to conventional biological treatment.…”

Section: Introductionmentioning

confidence: 99%

Treatment of Highly Alkaline Industrial Organic Raffinate Containing Pyridine and Its Derivatives by Coupling of Catalytic Wet Air Oxidation and Biological Processes

Bhatia,

Malik,

Jaiswar

et al. 2023

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

The treatment of highly alkaline and toxic industrial organic raffinate (IOR) containing pyridine and its derivatives was studied by coupling of catalytic wet air oxidation (CWAO) and a biological process. The CWAO of IOR was performed using 1 wt % platinum catalyst to degrade toxic compounds present in the IOR to biodegradable intermediates. The prepared catalyst was characterized using scanning electron microscopy, energy-dispersive X-ray spectroscopy, and X-ray diffraction analysis. Highpressure liquid chromatography of CWAO-treated effluent showed complete degradation of pyridine. The toxicity of the CWAOtreated effluent was checked, and it was found to be nontoxic. The CWAO-treated effluent was post-treated using biological method, and the final effluent was found to be within discharge limits prescribed by the statutory authorities. The reusability of the catalyst was studied, and the catalyst was found effective for four cycles. The present study suggests an effective solution for addressing toxic organic pollutants in wastewater.

show abstract

Nitrogenous heterocyclic compounds degradation in the microbial fuel cells

Cited by 46 publications

References 23 publications

Enhanced biodegradation of phenanthrene using different inoculum types in a microbial fuel cell

Enhanced biodegradation of phenanthrene using different inoculum types in a microbial fuel cell

A Novel Source of Radicals from UV/Dichloroisocyanurate for Surpassing Abatement of Emerging Contaminants Versus Conventional UV/Chlor(am)ine Processes

Treatment of Highly Alkaline Industrial Organic Raffinate Containing Pyridine and Its Derivatives by Coupling of Catalytic Wet Air Oxidation and Biological Processes

Contact Info

Product

Resources

About